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Wheel bearing dimensions

Posted: Fri Feb 27, 2009 5:53 pm
by Matt
Hi Guys

I want to fit some capri hubs ( i have them and it looks feasable) to the minor to get a 4x108 PCD.

To do this I need to know the dimensions of the standard minor bearings, can anyone help?

I especially need to know internal dia. and the width of both front bearings so I can look up and see if there is a "standard" wheel bearing avaliable off the shelf

Cheers :)

Posted: Fri Feb 27, 2009 9:36 pm
by les
I'll see if I can get some measurements tomorrow, if you have no luck tonight.

Posted: Fri Feb 27, 2009 11:30 pm
by Matt
Cheers Les

Posted: Sat Feb 28, 2009 6:34 pm
by Mogwai
The code on a bearing ive got kicking around is 6207 C3 ,is that any use

Posted: Sat Feb 28, 2009 6:58 pm
by linearaudio
6207 nominal size is 35mm inside, 72mm outside, 17mm wide if that helps

Posted: Sat Feb 28, 2009 7:33 pm
by les
The best figures I can come up with are as follows-----outer front bearing 0.550 thick/wide, shaft diameter 0.668. Inner bearing ? thick/wide, shaft diameter 0.983. I measured the stub axle to get the diameters and I only had the outer bearing to get the thickness from.

Posted: Sat Feb 28, 2009 9:54 pm
by IslipMinor
Both the Minor front wheel bearings are metric series, which is why the imperial dimensions look a bit odd.

These are the two bearings:

Inner 7205B 25mm ID 52mm OD 15mm Wide
Outer 7303B 17mm ID 47mm OD 14mm Wide

They are angular contact ball bearings, and were originally 'face adjusted', which means a closer tolerance on the thickness. Most of the commonly avaliable bearings toady are not face adjusted, which is why there are problems getting them to fit as they should.

I think the 6207 is the rear hub bearing?

Posted: Sat Feb 28, 2009 10:15 pm
by Mogwai
oops :oops: the code I gave on my earlier post was for a rear bearing ,

Posted: Sun Mar 01, 2009 11:48 am
by les
I thought my imperial sizes were coming up strange--- now I
know why!
Both the Minor front wheel bearings are metric series